After extensive testing I found the "Unlike" text to be more suitable rather then having an image for that as well. But if you feel you want an image for the "unlike" please look below
To perform the same action for the "UnLike" option please follow the same steps but this time for
"vbseo_unlike"
Below is the following code to add to the box
Code:
<img src="http://www.filmmakerforum.org/vbseo/resources/images/forum/unlike-thumbs.png" alt="Remove Your Like" />
</a>
The size should be perfect, it doesn't intrude on anything around it.
Enjoy!